FairPay is a proposed new approach to pricing digital goods and services that is centered on discovering each customer's perceived value through an ongoing dialog. It involves customers trying a product or service first before setting a "fair" price, and sellers then tracking whether that price seems fair. The goal is to foster win-win customer relationships through this continuous adaptation process, rather than relying solely on up-front set prices. The document discusses how FairPay aims to balance value, ability to pay, cost and profit through personalized value propositions and by engaging customers in a repeated game of value discovery.